I use update panel with condition if (!Ispostback) for page to stop refresh and show listview ,and i click on data pager ,
when i am on first page , i show 25 products , and click on 2 , it shows 25 to 50 products, but then again when i click on first page , no action is called,it does not show 1 to 25 products,,(i.e. it remains on second page with no action)...